1834 - Thomas Davenport of Vermont developed the first real electric motor ('real' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields.
Below is a more detailed usage of operating systems according to age group: 18 to 34 years old. Of all the smartphone users, 50% use Android as operating system, 43% use iPhone, 39% use Microsoft and 38% use RIM. Apparently, more users prefer Android.
Amid a slew of incremental improvements to its iPad tablets and MacBook laptops, Apple today announced some landmark news about its oldest surviving operating system: It will not charge for the latest big upgrade, Mac OS X 10.9 Mavericks, breaking from a tradition that goes back 16 years and shining a light on a long-unfolding reversal in how tech ...